Josiah Campbell
Lead Engineer at 1440
Chicago, Illinois, United States
Summary
👤
Senior🎓
Top SchoolJosiah Campbell is a results-driven lead engineer with 10 years of experience building full-stack, payment-focused systems for high-volume marketplaces. He combines hands-on engineering with technical leadership, having driven integrations like Apple Pay and Google Pay that generated $4M in net-new sales for a platform with $900M in average sales. At Reverb he modernized GraphQL tooling and checkout APIs, cutting latency and infrastructure costs while enabling $500M+ in annual transactions with zero downtime. He excels in payment systems, cloud optimization, and developer experience—automating reconciliation and migrations that saved hundreds of thousands annually and prevented millions in compliance losses. Based in Chicago, Josiah pairs product-minded architecture with mentorship, having guided teams to promotions and widespread tool adoption. A pragmatic problem-solver, he often focuses on engineering changes that directly unlock revenue and operational savings rather than just technical elegance.
10 years of coding experience
11 years of employment as a software developer
Bachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Grand Valley State UniversityMechatronics, Mechatronics at Newaygo County Career Tech Center
Spanish, English
Stackoverflow
1reputation
0reached
2answers
0questions
Github Skills (200)
postgresql10
reader10
atom-feed10
rss10
rss-reader10
jetpack10
kotlin-coroutines10
letsencrypt10
feed10
compose10
image-loader10
golang10
coroutines10
kotlin-android10
compose-multiplatform10
Programming languages (14)
Github contributions (5)
jocmp/rubyalgos
Sep 2018 - Dec 2021
Brainteaser algorithms solved in Ruby
Contributions:2 PRs, 40 pushes, 5 branches in 3 years 3 months
solvedalgorithms-solvedruby
jocmp/coldrage-web
Dec 2019 - Jul 2022
cold[ sto]rage -- Freeze Spotify playlists for posterity
Contributions:28 PRs, 45 pushes, 20 branches in 2 years 7 months
stofreezecoldspotifyrage
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